But he has since switched his attentions to road cycling, with victory in this year's prologue his aim for 2006.
However, he said: "To do that this year would be amazing but London's where I'm from and winning it there would be huge.
"The fact that London has won the bid to host the start of the Tour is almost too good to be true.
"It's quite a scary prospect to think that in my career I'm going to have the possibility of leading the Tour de France (in London, 2007) and winning Olympic gold (in 2012) in London."
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Wiggins is likely to face competition from some of cycling's biggest names, including fellow countryman David Millar, who will this summer return from his two-year drug ban.
And Wiggins insisted he would welcome back his former Olympic team-mate.
"He deserves his chance to come back," he said. "He's served his time and he's learned his lesson. He will have been out two years by the time he comes back - that's a long enough sentence.
"Come London in 2007, we will have two British people battling for the win. That's great for British cycling.
"To have someone from this country winning the prologue in London is amazing enough - to have a potential British one-two is massive."
http://news.bbc.co.uk/sport2/hi/other_sports/cycling/4644430.stm